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Vitamin C Ester-C

Ester C: Vitamin C

In the 1980s, a curious scientist went on a quest to find a better form of vitamin C that's gentler on the stomach. After much research, Ester-C was invented. Ester-C combines vitamin C with naturally occurring metabolites, aka calcium ascorbate (CA C12 H14 O12), for long-lasting support.

The unique, chemical-free manufacturing process neutralizes the pH value, resulting in a non-acidic formula that's easier on your digestive system. Ester-C is also formulated (and has been clinically studied) to stay in your system longer than regular vitamin C, thanks to the power of the aforementioned metabolites.

Browse formulas with or without bioflavonoids, in various forms including powders, capsules, chewables and more. At, it’s easy to find a non-GMO Ester-C vitamin C that works for you.

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